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All Journal Dinamisia: Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI Pelita Eksakta Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Didaktik : Jurnal Ilmiah PGSD STKIP Subang Edukimia SECONDARY : Jurnal Inovasi Pendidikan Menengah (JIPM) SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA BIOCHEPHY: Journal of Science Education Jurnal Pijar MIPA Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) MASALIQ: Jurnal Pendidikan dan Sains Chimica Didactica Acta : Journal of Chemistry and Chemistry Education
Dwi Finna Syolendra
Universitas Negeri Padang
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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PROFIL PEMAHAMAN KONSEP SISWA PADA MATERI ASAM BASA BERDASARKAN TES DIAGNOSTIK TWO TIER MULTIPLE CHOICE DI SMAN 7 PADANG Suci Wulandari Ismansyar; Dwi Finna Syolendra
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 03 (2026): Volume 12 No. 3, September 2026 Public
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i03.18791

Abstract

Acids and bases are a topic in chemistry that students often find difficult to understand because it combines conceptual understanding with mathematical calculations. This study aims to describe students’ conceptual understanding profiles regarding acid base concepts based on the results of a two tier multiple choice diagnostic test. This study employed a quantitative descriptive approach involving 67 twelfth-grade students in Phase F at SMAN 7 Padang, distributed across two classes and selected using simple random sampling. Data were collected using a two tier multiple choice diagnostic test consisting of 20 items. Students’ responses were categorized into four groups Correct-Correct (CC/conceptual understanding), Correct-Wrong (CW/misconception error 1/MK-1), Wrong-Correct (WC/misconception error 2/MK-2), and Wrong-Wrong (WW/does not understand the concept), and were then analyzed descriptively in terms of percentages at the overall level, by indicator, and by test item. The results of the study showed that, overall, students achieved a CC percentage of 46.72%, a CW percentage of 25.07%, a WC percentage of 10.30%, and a WW percentage of 17.91%. The highest level of conceptual understanding was found in test items regarding statements consistent with the Arrhenius acid base theory, the limitations of the Arrhenius acid base theory, and the determination of acid base solutions based on litmus paper data, with a CC percentage of 79.10%. The lowest level of understanding was found in the item testing the calculation of the degree of ionization based on pH and Ka, with a percentage of students who answered correctly (CC) of 5.97%. These findings indicate that students relatively well understand the theoretical foundations and identification of acids and bases, but experience significant difficulties when conceptual understanding must be integrated with computational skills, exhibiting a variety of misconceptions.
Co-Authors Achie Keylla Adha, Azima Afifah Asriati Aldri Frinaldi Amanda, Putry Andromeda Annisa Dewi Pangestuti Ayu Wulandari Bali Yana Fitri Boni Saputra Dasman Lanin Dede Dwika Firmansah Deffa, Santri Desy Kurniawati Faizah Qurrata Aini Fajriah Azra Farah Nalsha Laila Putri Fauzana Gazali Fitri Amelia Fitri Yanti Pulungan Hardeli Hardeli Hesty Parbuntari Hidayanti, Ermia Hidayatul Fajri Jumiati Lince Magriasti Mahmud Mahmud Melati Wahyuni Miftahul Khair Minda Azhar Mubarak*, Adil Muhammad Nasrullah Mulia, Melindra Munifa Mahdiah Nabeta, Elputri Nirmatya Nofri Yuhelman Pratiwi Nurhabibi PUTRI WULANDARI Rahadian Zainul Rifka Andani Riga, Riga Risty, Chika Mei Romy Dwipa Yamesa Away Sofia Fadila Sri Benti Etika Suci Wulandari Ismansyar Suryelita Syamsir , Syamsir Syamsir Ulfa Autafia Umi Salamah Viona Maharani Yerimadesi Zonalia Fitriza